Serotonin plays different roles across networks within the same sensory modality. Previously. we used whole-cell electrophysiology in Drosophila to show that serotonergic neurons innervating the first olfactory relay are inhibited by odorants (Zhang and Gaudry. 2016). https://www.chiggate.com/lumishine-lumi-10-permanent-creme-color-8n-cheap/